CN1246723C - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN1246723C CN1246723C CNB011459026A CN01145902A CN1246723C CN 1246723 C CN1246723 C CN 1246723C CN B011459026 A CNB011459026 A CN B011459026A CN 01145902 A CN01145902 A CN 01145902A CN 1246723 C CN1246723 C CN 1246723C
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- liquid crystal
- crystal indicator
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- data bus
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 69
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 36
- 230000002452 interceptive effect Effects 0.000 claims description 32
- 239000011159 matrix material Substances 0.000 claims description 32
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical group [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims 2
- 230000005684 electric field Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 230000004075 alteration Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Spectroscopy & Molecular Physics (AREA)
Abstract
Disclosed is a liquid crystal display device comprising a lower substrate and an upper substrate facing each other, an opposed electrode formed on the lower substrate, a pixel electrode formed on the opposed electrode by an insulating film, an upper polarizing plate and an lower polarizing plate respectively mounted on the upper substrate and lower substrate, a control bus and data bus. Wherein, the friction direction is same as direction of disturbance electric field formed between the data bus and pixel electrode or opposed electrode, and between the control bus and pixel electrode or opposed electrode. Preferably, a hook-like patten is formed in a sub pixel or a diagonal shape and a backlash shape are alternately formed around the sub pixel.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator, relate in more detail and a kind ofly adopt the wide viewing angle technology or reduce the black-matrix layer of desired specific part or remove this black-matrix layer and improve the liquid crystal indicator of percentage of open area.
Background technology
As everyone knows, traditional liquid crystal indicator adopts TN (Twisted Nematic) pattern mostly, is that the visual angle is narrow but be generally its disadvantage.For improving its visual angle, and there is the people to propose the liquid crystal indicator of a kind of fringing field pattern (FFS, Fringe Field Switching).In addition, owing to the aberration of single regional different visual angles that is produced a kind of liquid crystal indicator that improves the FFS pattern of hook formation has been proposed again in order to prevent.
But, in the traditional structure of having applied for,, but, still need continuously signal specific to be added to data bus outward in order to connect other pixel even in order to add the off voltage that is equivalent to 0V in pixel capacitors and opposite electrode.Therefore, between data bus and pixel capacitors, perhaps form interference field (Noise Field) between data bus and the opposite electrode, therefore, liquid crystal molecule departs from polarizing axis, in this part leak light.For interdicting this leak light, then must on upper plate, form large-area black matrix" (BM:Black Maerix) figure, the result causes the percentage of open area on display board to reduce.
In addition, consider the assembling border of upper and lower plates, because the design black-matrix layer, the minimizing of percentage of open area will have a negative impact to realizing high briliancy.Fig. 1 a, Fig. 1 b and Fig. 1 c are the figure that is used to illustrate the traditional structure problem.
Fig. 1 a is the pixel structure figure of traditional FFS pattern.Fig. 1 b is the liquid crystal molecule figure that constitutes specific angle with electric interfering field.Fig. 1 c is the graph of a relation of liquid crystal molecule and polaroid.
Consult Fig. 1 a, Fig. 1 b, Fig. 1 c, for obtaining maximum transmissivity, when bearing liquid crystal, it is slided with ° angle, 2 one-tenth of control buss ± 12, and when positive liquid crystal, then should with control bus 2 between becomes ± 78 ° of angles slips, liquid crystal molecule 3 should be identical with the initial friction direction.
At this moment, between data bus 4 and pixel capacitors 6, perhaps between data bus 4 and opposite electrode 8, form electric interfering field 10.
Fig. 1 b is used to illustrate that the liquid crystal molecule 3 that constitutes specific angle with described electric interfering field 10 is subjected to the figure of electric interfering field 10 effects, be when bearing liquid crystal, the major axis of liquid crystal molecule 3 and described electric interfering field 10 homeotropic alignments, when being positive liquid crystal, the major axis of liquid crystal molecule 3 is then horizontal with 10 one-tenth of electric interfering fields.Like this, shown in Fig. 1 c, 3 polarizing axis from polaroid of its liquid crystal molecule depart from special angle, and this expression when circuit disconnects, the leakage of light can take place near data bus 4.
Fig. 2 is the sectional view of traditional liquid crystal display structure.The same as previously mentioned, because between described data bus 4 and pixel capacitors 6, or in the influence of described data bus 4 with the electric interfering field 10 of opposite electrode 8 generations, described liquid crystal molecule 3 will depart from the polarizing axis of polaroid 12.Therefore, being to prevent that the light that produces from leaking near described data bus 4, must be black-matrix layer 22 about 27 μ m in that width is set on the data bus 4 of upper plate then.
In addition, also need at the black matrix" layer region 22 that is provided with on the described control bus 2 about 500 μ m.Such shortcoming is that percentage of open area is reduced, thereby has reduced the briliancy of display board.
In addition, plane internal switch mode in the past (IPS, In-Plane Switching) has above-mentioned shortcoming too.
Summary of the invention
The purpose of this invention is to provide a kind of following liquid crystal indicator: with the IPS and the FFS pattern of standard black (NormallyBlack) pattern, when the electric interfering field direction is consistent with the frictional direction of positive liquid crystal, because the major axis of liquid crystal molecule and the direction of electric interfering field are in full accord, effect of electric field so even liquid crystal molecule is interfered, also can not depart from the polarizing axis of tabula rasa, so keep dark state all the time.Therefore, the object of the present invention is to provide and a kind ofly black-matrix layer is set in need not on a large scale for the leakage of interdicting this part light, maybe can remove this part black-matrix layer, or make the width of black-matrix layer form very narrow, thereby correspondingly increase percentage of open area, realize the high liquid crystal indicator of briliancy.
For achieving the above object, liquid crystal indicator of the present invention comprises: lower basal plate opposite one another and upper substrate, be formed on the opposite electrode on the above-mentioned lower basal plate, be formed on pixel capacitors on the described opposite electrode across dielectric film, be installed in lower polarizing sheet and upper polarizing sheet on described lower basal plate and the described upper substrate outside respectively, control bus and data bus, make described lower basal plate frictional direction, and be formed on described data bus and described pixel capacitors or and described opposite electrode between, and described control bus and described pixel capacitors or and described opposite electrode between the direction of electric interfering field consistent.
Preferably, described opposite electrode have by an ITO form box-like, described pixel capacitors so that alternately form oblique line (/) shape and backslash () shape form hook-shaped or subpixel in a subpixel by, thereby has the FFS schema construction by forming figure by the 2nd ITO.
In addition, described opposite electrode and described pixel capacitors constitute by opaque metal, described opposite electrode and described pixel capacitors form figure respectively, and in a subpixel, form hook-shaped, perhaps alternately form on subpixel next door oblique line (/) shape and backslash () shape, thereby have the structure of IPS pattern.
In addition, the frictional direction of described lower basal plate is parallel to described control bus, described electric interfering field is formed between described data bus and the described opposite electrode, on between perhaps described data bus and the described pixel capacitors any, the upper plate black-matrix layer straitly is formed on the data bus.
Preferably, the width of described upper plate black-matrix layer is less than or equal to described data bus and is formed at distance between therebetween the described opposite electrode.The width of upper plate black-matrix layer is preferably below 6 μ m.
In addition, when the frictional direction of infrabasal plate becomes level with control bus, also can not form the upper plate black-matrix layer.
On the other hand, when the frictional direction of infrabasal plate during perpendicular to control bus, described electric interfering field be formed on described control bus and described opposite electrode or and described pixel capacitors between, the upper plate black-matrix layer is formed on the above-mentioned control bus with the width that is less than or equal to described control bus.
In addition, during perpendicular to control bus, can not form the upper plate black-matrix layer, at the frictional direction of substrate to improve light permeable rate.
In addition, the frictional direction of upper substrate is the direction of the relative infrabasal plate either direction in non-parallel or parallel.Preferably make the polarizing axis of lower polarizing sheet consistent with the frictional direction of infrabasal plate.In addition, preferably make the frictional direction of the polarizing axis of upper polarizing sheet and infrabasal plate perpendicular.
Description of drawings
Fig. 1 a is the pixel structure figure of the traditional FFS pattern of expression.
Fig. 1 b is the liquid crystal molecule figure that expression and electric interfering field form specific angle.
Fig. 1 c is the graph of a relation of expression liquid crystal molecule and polaroid.
Fig. 2 is the sectional view of traditional liquid crystal display structure.
Fig. 3 a, Fig. 3 b, Fig. 3 c are the structural drawing of the liquid crystal display relevant with one embodiment of the invention
Fig. 4 is the sectional view of the LCD of an embodiment involved in the present invention.
Fig. 5 is the sectional view of the liquid crystal indicator of another embodiment involved in the present invention.
Inventive embodiment
Below, will do one with regard to most preferred embodiment of the present invention with reference to the accompanying drawings and describe in detail.
Fig. 3 a, Fig. 3 b, Fig. 3 c are the structural drawing of the related LCD of one embodiment of the invention, and Fig. 4 is the sectional view of the related LCD of one embodiment of the invention.
During with reference to these figure, reference marks 3 expression liquid crystal molecules, the 4th, data bus, 6 ' be pixel capacitors, 8 ' be opposite electrode, the 12nd, lower polarizing sheet, the 14th, lower basal plate, 16 is dielectric film, 18 and 18 ' be oriented film, 20 is outer coating (O/C), 22 ' be black-matrix layer (BM), 24 is upper substrate, and 26 is back side ITO, and 28 is upper polarizing sheet.
In structure of the present invention, the box-like opposite electrode 8 that forms by 1ITO ', control bus 2, opposite electrode bus 7, data bus 4, the structure with traditional is identical basically with TFT.But, for the refractive index by the described liquid crystal molecule of compensation solves the aberration problem, and use the pixel capacitors 6 that constitutes by 2ITO ', in a subpixel, form hook-shaped or alternately form oblique line (/) shape and backslash (on the subpixel next door) shape.
At this moment, the friction of lower basal plate 14 can be with paralleling with described control bus 2 or perpendicular method realizes, in addition, the friction of upper substrate 24 with respect to the frictional direction of described infrabasal plate 14 with non-parallel or rub abreast.Make the polarizing axis of the lower polarizing sheet 12 that is contained in described infrabasal plate 14 outsides consistent with the frictional direction of described infrabasal plate 14, because the polarizing axis of upper polarizing sheet 28 that is installed in upper substrate 24 outsides is according to installing with the requirement perpendicularly of the frictional direction of lower basal plate 14, so when no impressed voltage, form the standard black mode that becomes to black dull state.
Generally speaking, electric interfering field 10 be formed on described data bus 4 and pixel capacitors 6 ' or and opposite electrode 8 ' between, perhaps control bus 2 and pixel capacitors 6 ' or and opposite electrode 8 ' between.Make friction and described control bus 2 when carrying out abreast, frictional direction then with act on described data bus 4 and pixel capacitors 6 ' or opposite electrode 8 ' between the direction of electric interfering field 10 consistent.
In addition, when the described relatively control bus 2 of frictional direction is vertically rubbed, then frictional direction with act on described control bus 2 and pixel capacitors 6 ' or opposite electrode 8 ' between the direction of electric interfering field 10 consistent.Consequently, when using the forward liquid crystal, the major axis of liquid crystal molecule 3 is configured in the direction of friction, at this moment, by the polarity of caused liquid crystal molecule 3 spontaneous polarizations of electric field owing to be formed on the end of the major axis of liquid crystal molecule 3, even so be subjected to the effect of electric interfering field 10, but when the direction of frictional direction and electric interfering field 10 was consistent, liquid crystal molecule 3 is the influence of electric field 10 without interruption also.
Thereby, because the polarizing axis of lower polarizing sheet 12 do not depart from the major axis of liquid crystal molecule 3, so large-scale black-matrix layer shown in need not as conventional art, to be provided with (Fig. 2 22).Therefore, in positive liquid crystal, in the frictional direction zone consistent with the direction of electric interfering field 10, consider the border of assembling, with the narrow width about the BM22 ' 4 μ m of upper plate be formed on described data bus 4 or the control bus 2, but when white, as do not have the misgivings of aberration, then also can omit the BM22 ' of privileged site.Equally, with opaque metal form described opposite electrode 8 ' and pixel capacitors 6 ', and make above-mentioned opposite electrode 8 ' and pixel capacitors 6 ' formation figure respectively, in a subpixel, form an ancient unit of weight shape, or alternately form oblique line (/) backslash (on its pixel next door) shape have the IPS mode configuration time also be with above-mentioned identical.
For example, just can understand from Fig. 3 a, in this structure to the pixel capacitors 6 formed by 2ITO ' forms figure, make angle that the figure of slat constitutes with respect to control bus 2 in ± 45 °, the best is pressed ± 12 ° of formation figures.
In this structure, when using positive liquid crystal, the described relatively control bus 2 of frictional direction flatly rubs.At this moment, in subpixel, pixel capacitors 6 ' and opposite electrode 8 ' between when being disconnected by 0V, described data bus 4 and pixel capacitors 6 ' between, perhaps data bus 4 and opposite electrode 8 ' between electric interfering field 10 will work.
Fig. 3 b is the detailed enlarged drawing of the described data bus 4 of electric interfering field 10 effects, and the frictional direction of positive liquid crystal is consistent with the direction of electric interfering field 10 as seen from the figure.
Clear as can be known by Fig. 3 c, at this moment, even under the effect of electric interfering field 10, the major axis of described liquid crystal molecule 3 does not have to depart from the polarizing axis of lower polarizing sheet 12, so the result with the standard black structures leak light does not take place.
Therefore, as shown in Figure 4, can make the black-matrix layer 22 of upper plate ' the opposite electrode 8 of width between being formed at than by described data bus 4 ' with opposite electrode 8 ' between distance little or identical, promptly less than 21 μ m or identical, more preferably about 6 μ m, preferably can be reduced to about 4 μ m.At this moment, even if when upper and lower plates is made up, produce the misalignment phenomenon, also influence the minimizing of percentage of open area hardly.
Fig. 5 is the sectional side view of the liquid crystal indicator that relates to of expression another embodiment of the present invention.
As shown in Figure 5, when white, if there is not an aberration phenomenon, also can the top of described data bus 4 fully without the black-matrix layer of upper plate (22 among Fig. 2 ' or Fig. 4 in 22 ').In this structure, can make R, G, B resin material 30 overlapping, relatively reduce transmissivity, thereby replace the function of black-matrix layer.At this moment, the percentage of open area that causes owing to misalignment in the time of can not being created in the fit on lower plate reduces.
In other embodiments of the invention, not only on the data bus 4 of described mistake and also control bus 2 on black-matrix layer also can reduce width or not use.At this moment, this array structure, identical with the structure that had illustrated, the pixel capacitors of being formed by 2ITO 6 ' form figure, in a subpixel, form hook-shaped figure or alternately form oblique line (/) shape and backslash (on the subpixel next door) shape.
The relative control bus 2 of the friction of infrabasal plate 14 vertically rubs, and the frictional direction of the relative infrabasal plate 14 of the friction of upper substrate 24 is not parallel to or rubs abreast.
Make the polarizing axis of the lower polarizing sheet 12 that is installed in described lower basal plate 14 outsides consistent by installation with the frictional direction of described infrabasal plate 14, make the polarizing axis of the upper polarizing sheet 28 that is installed in upper substrate 24 outsides vertical, become the standard black mode of forming black state when being formed on no impressed voltage with the frictional direction of lower basal plate 14.At this moment, electric interfering field 10 act on described control bus 2 and pixel capacitors 6 ' or opposite electrode 8 ' between.
But, when the direction of frictional direction and electric interfering field 1O is consistent, the result is when using positive liquid crystal, the major axis of liquid crystal molecule 3 is arranged along frictional direction, at this moment, the polarity of the spontaneous polarization of the liquid crystal molecule 3 that is produced by electric field is formed on the end of the major axis of liquid crystal molecule 3, even electric interfering field 10 effects, when the direction of frictional direction and electric interfering field 1O was consistent, liquid crystal molecule 3 also can not be subjected to the influence of electric interfering field 10.
Therefore, because the polarizing axis of bottom polarizer plate 12 and the major axis of liquid crystal molecule 3 do not depart from,, large-scale black-matrix layer is set so in technology of the present invention, need not technology as in the past.
Therefore, on described control bus 2, make the narrow width of black-matrix layer, promptly be slightly less than the width of control bus 2 or identical, promptly be less than or equal to 30 μ m, preferably form about 4 μ m, perhaps, also can dispense the black-matrix layer of privileged site as when white, there not being the aberration phenomenon.
In said structure, if described R, G, B resin is overlapping, its transmissivity is relatively reduced, just can substitute the function of black-matrix layer.But, owing to have the direction and the inconsistent zone of frictional direction of electric interfering field 10, must consider of the design of described control bus 2 to the black-matrix layer of this part.
Equally, described opposite electrode 8 and pixel capacitors 6 usefulness opaque metals are made, and respectively described opposite electrode 8 and pixel capacitors 6 are formed figure, in a subpixel, form hook-shaped, perhaps alternately at other oblique line (/) shape and the backslash (of forming of subpixel) structure with IPS pattern of shape is also with described same.
As mentioned above, the liquid crystal indicator that percentage of open area is improved of the present invention, because percentage of open area is improved, make pixel capacitors and opposite electrode be positioned at lower basal plate especially, and percentage of open area is improved with the IPS pattern of parallel electric field and FFS pattern, the display board briliancy increases, so so this product is applicable to the product that requires the contour briliancy characteristic of liquid crystal TV highly beneficially.
In addition, the liquid crystal indicator of the aperture opening ratio of the raising relevant with the embodiment of the invention is not limited to described embodiment, can implement various changes in the scope that does not break away from the present technique main points.
Claims (12)
1. liquid crystal indicator, comprise: lower basal plate opposite one another and upper substrate, be formed on opposite electrode on the above-mentioned lower basal plate, be formed on pixel capacitors on the described opposite electrode, be installed in lower polarizing sheet and upper polarizing sheet, grid bus and data bus on described lower basal plate and the described upper substrate outside respectively across dielectric film
It is characterized in that: make described lower basal plate frictional direction, be formed on described data bus and described pixel capacitors or and described opposite electrode between and described grid bus and described pixel capacitors or and described opposite electrode between the direction of electric interfering field consistent.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that: described liquid crystal indicator has fringe field switching mode, described opposite electrode have by first indium tin oxide form box-like, described pixel capacitors is by forming figure by second indium tin oxide, so that form hook-shaped in a subpixel or alternately form oblique line shape and backslash shape by subpixel.
3. liquid crystal indicator as claimed in claim 1, it is characterized in that: described liquid crystal indicator has plane internal switch mode, described opposite electrode and described pixel capacitors constitute by opaque metal, described opposite electrode and described pixel capacitors form figure respectively, and formation is hook-shaped in a subpixel, perhaps alternately forms oblique line shape and backslash shape on the subpixel next door.
4. liquid crystal indicator as claimed in claim 1, it is characterized in that: the frictional direction level that makes described lower basal plate is in described control bus, described electric interfering field is formed between described data bus and the described opposite electrode, on between perhaps described data bus and the described pixel capacitors any, the upper plate black-matrix layer straitly is formed on the data bus.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: the frictional direction of described lower basal plate becomes level with described control bus, and does not form the upper plate black-matrix layer.
6. liquid crystal indicator as claimed in claim 4 is characterized in that: the width of described upper plate black-matrix layer is less than or equal to described data bus and is formed at distance between therebetween the described opposite electrode.
7. liquid crystal indicator as claimed in claim 6 is characterized in that: the width of described upper plate black-matrix layer is below 21 μ m.
8. liquid crystal indicator as claimed in claim 1, it is characterized in that: the frictional direction of described lower basal plate is perpendicular to described control bus, described electric interfering field be formed on described control bus and described opposite electrode or and described pixel capacitors between, the upper plate black-matrix layer is formed on the above-mentioned control bus with the width that is less than or equal to described control bus.
9. liquid crystal indicator as claimed in claim 1 is characterized in that: the frictional direction of described lower basal plate is perpendicular to described control bus, and do not form the upper plate black-matrix layer.
10. liquid crystal indicator as claimed in claim 1 is characterized in that: the frictional direction of described upper substrate is a direction in the not parallel or parallel direction with respect to the frictional direction of described infrabasal plate.
11. liquid crystal indicator as claimed in claim 1 is characterized in that: the polarizing axis of described lower polarizing sheet is consistent with the frictional direction of described lower basal plate.
12. liquid crystal indicator as claimed in claim 1 is characterized in that: the polarizing axis of described upper polarizing sheet and the frictional direction of lower basal plate are perpendicular.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0073318A KR100476044B1 (en) | 2000-12-05 | 2000-12-05 | Liquid crystal display for elevating aperture ratio |
| KR73318/00 | 2000-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1371014A CN1371014A (en) | 2002-09-25 |
| CN1246723C true CN1246723C (en) | 2006-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011459026A Expired - Lifetime CN1246723C (en) | 2000-12-05 | 2001-12-05 | Liquid crystal display |
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| Country | Link |
|---|---|
| US (1) | US6809789B2 (en) |
| JP (1) | JP3793891B2 (en) |
| KR (1) | KR100476044B1 (en) |
| CN (1) | CN1246723C (en) |
| TW (1) | TW546510B (en) |
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| KR100956335B1 (en) * | 2002-05-09 | 2010-05-06 | 삼성전자주식회사 | Liquid crystal display |
| KR20040016571A (en) * | 2002-08-19 | 2004-02-25 | 비오이 하이디스 테크놀로지 주식회사 | Fringe field switching mode liquid crystal display device |
| JP2004219991A (en) * | 2002-12-27 | 2004-08-05 | Sharp Corp | Substrate for display device and liquid crystal display device having the same |
| JP4880208B2 (en) | 2003-07-02 | 2012-02-22 | 三星電子株式会社 | Display panel and multi-domain liquid crystal display device including the same |
| JP4828419B2 (en) * | 2004-01-19 | 2011-11-30 | シャープ株式会社 | Display device |
| KR100577799B1 (en) * | 2004-02-16 | 2006-05-11 | 비오이 하이디스 테크놀로지 주식회사 | Method for aligning polarizer and rubbing axes in fringe field switching mode liquid crystal display |
| US8867005B2 (en) | 2005-06-10 | 2014-10-21 | Sharp Kabushiki Kaisha | Display element and display device |
| KR101152548B1 (en) * | 2005-06-30 | 2012-06-01 | 엘지디스플레이 주식회사 | Liquid crystal display device increasing viewing angle |
| WO2007034600A1 (en) * | 2005-09-20 | 2007-03-29 | Sharp Kabushiki Kaisha | Display panel and display device |
| DE102006057333B4 (en) * | 2005-12-30 | 2010-01-28 | Lg Display Co., Ltd. | IPS liquid crystal display device |
| KR20080023752A (en) | 2006-04-05 | 2008-03-14 | 닛토덴코 가부시키가이샤 | Liquid crystal panel and liquid crystal display |
| JP2008083395A (en) * | 2006-09-27 | 2008-04-10 | Casio Comput Co Ltd | Liquid crystal display device |
| TWI403809B (en) * | 2007-01-29 | 2013-08-01 | Hydis Tech Co Ltd | Fringe field switching mode liquid crystal display and manufacturing method thereof |
| KR100855782B1 (en) * | 2007-01-29 | 2008-09-01 | 비오이 하이디스 테크놀로지 주식회사 | Fringe Field Switching mode Liquid Crystal Display and Manufacturing Method Thereof |
| JP2009150925A (en) * | 2007-12-18 | 2009-07-09 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display device |
| JP2009169353A (en) * | 2008-01-21 | 2009-07-30 | Hitachi Displays Ltd | Liquid crystal display |
| JP5456980B2 (en) | 2008-02-15 | 2014-04-02 | 三菱電機株式会社 | Liquid crystal display device and manufacturing method thereof |
| JP4609525B2 (en) * | 2008-05-14 | 2011-01-12 | ソニー株式会社 | Liquid crystal display device |
| JP5301294B2 (en) * | 2008-05-30 | 2013-09-25 | 株式会社ジャパンディスプレイウェスト | Display device |
| TWI392940B (en) * | 2009-03-11 | 2013-04-11 | Au Optronics Corp | Pixel structure, touch display panel and liquid crystal display |
| CN102629058B (en) * | 2011-12-31 | 2013-06-19 | 京东方科技集团股份有限公司 | Array substrate, liquid crystal display device and orientation friction method |
| KR101968257B1 (en) | 2012-08-31 | 2019-04-12 | 삼성디스플레이 주식회사 | Liquid crystal display |
| KR101997745B1 (en) | 2013-01-25 | 2019-07-09 | 삼성디스플레이 주식회사 | Liquid crystal display |
| JP2014215348A (en) | 2013-04-23 | 2014-11-17 | Jnc株式会社 | Liquid crystal panel |
| KR102085810B1 (en) | 2013-11-19 | 2020-03-09 | 삼성디스플레이 주식회사 | Liquid crystal display panel, method of manufacturing the same and liquid crystal display apparatus having the same |
| KR102422555B1 (en) | 2015-05-08 | 2022-07-21 | 삼성디스플레이 주식회사 | Display device |
| KR102330124B1 (en) | 2015-06-08 | 2021-11-24 | 삼성디스플레이 주식회사 | Liquid crystal display device |
| CN204945587U (en) * | 2015-09-17 | 2016-01-06 | 京东方科技集团股份有限公司 | Display panel and display device |
| KR102062655B1 (en) | 2018-05-18 | 2020-01-06 | 전북대학교 산학협력단 | ultra high definition horizontal alignment type liquid crystal display |
| KR102062651B1 (en) | 2018-05-18 | 2020-01-06 | 전북대학교 산학협력단 | ultra high definition vertical alignment type liquid crystal display |
| KR102091478B1 (en) | 2018-09-20 | 2020-03-20 | 전북대학교 산학협력단 | ultra high definition BM-less liquid crystal display |
| KR102105573B1 (en) | 2018-09-20 | 2020-04-29 | 전북대학교 산학협력단 | wide viewing angle and ultra high definition liquid crystal display |
| KR102172759B1 (en) | 2019-05-23 | 2020-11-02 | 전북대학교산학협력단 | LCD with fast response time |
| KR102172760B1 (en) | 2019-05-23 | 2020-11-02 | 전북대학교산학협력단 | ultra high definition vertically aligned LCD |
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| JP3003358B2 (en) * | 1992-03-03 | 2000-01-24 | 松下電器産業株式会社 | Active matrix type liquid crystal panel |
| US6198464B1 (en) * | 1995-01-13 | 2001-03-06 | Hitachi, Ltd. | Active matrix type liquid crystal display system and driving method therefor |
| TW454101B (en) * | 1995-10-04 | 2001-09-11 | Hitachi Ltd | In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two different kinds of reorientation directions and its manufacturing method |
| JP3204912B2 (en) * | 1995-11-30 | 2001-09-04 | 松下電器産業株式会社 | Active matrix liquid crystal display |
| US5745207A (en) * | 1995-11-30 | 1998-04-28 | Matsushita Electric Industrial Co., Ltd. | Active matrix liquid crystal display having electric fields parallel to substrates |
| KR100209531B1 (en) * | 1996-06-22 | 1999-07-15 | 구자홍 | Liquid crystal display device |
| JP3120751B2 (en) * | 1996-11-06 | 2000-12-25 | 日本電気株式会社 | In-plane switching LCD |
| KR100279257B1 (en) * | 1997-12-03 | 2001-01-15 | 김영환 | LCD Display |
| KR100265572B1 (en) * | 1997-12-03 | 2000-09-15 | 김영환 | Lcd device imrpoved color-shift |
| JP3022463B2 (en) * | 1998-01-19 | 2000-03-21 | 日本電気株式会社 | Liquid crystal display device and method of manufacturing the same |
| KR100293811B1 (en) * | 1998-05-29 | 2001-10-26 | 박종섭 | Ips mode liquid crystal display device |
| JP4357622B2 (en) * | 1999-03-19 | 2009-11-04 | シャープ株式会社 | Liquid crystal display |
| JP2000305095A (en) * | 1999-04-16 | 2000-11-02 | Hitachi Ltd | Liquid crystal display device |
| JP3481509B2 (en) * | 1999-06-16 | 2003-12-22 | Ｎｅｃ液晶テクノロジー株式会社 | Liquid crystal display |
-
2000
- 2000-12-05 KR KR10-2000-0073318A patent/KR100476044B1/en active IP Right Grant
-
2001
- 2001-12-04 US US10/005,060 patent/US6809789B2/en not_active Expired - Lifetime
- 2001-12-04 TW TW090129938A patent/TW546510B/en not_active IP Right Cessation
- 2001-12-05 CN CNB011459026A patent/CN1246723C/en not_active Expired - Lifetime
- 2001-12-05 JP JP2001371968A patent/JP3793891B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR100476044B1 (en) | 2005-03-10 |
| TW546510B (en) | 2003-08-11 |
| US20020067448A1 (en) | 2002-06-06 |
| JP3793891B2 (en) | 2006-07-05 |
| JP2002221726A (en) | 2002-08-09 |
| CN1371014A (en) | 2002-09-25 |
| US6809789B2 (en) | 2004-10-26 |
| KR20020044293A (en) | 2002-06-15 |
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Application publication date: 20020925 Assignee: BOE Technology Group Co., Ltd. Assignor: Hydis Technologies Co., Ltd. Contract record no.: 2014990000768 Denomination of invention: Liquid crystal display device Granted publication date: 20060322 License type: Common License Record date: 20140924 |
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